Lock.



' G. ASTON.

LOOK.

- APPLIOA'IION FILED MAR. 31, 1914.

Patented Jan. 19, 1915.

WITNESSES UNITED STATES PATENT oEEIoE.

GEORGE ASTON, OF NEW YORK, N. Y., ASSIGNOR 0E THREE-FOURTHS To JOSEPHBEASLEY, or NEW YORK, N. Y.

LOCK.

Specification of Letters Patent.

Patented Jan. 19, 1915.

Application filed March 31, 1914. Serial No. 828,462.

To (222 whom at m (13 concern:

Be. it known that I, GEORGE As'roN, a citizen of the United States,residing at New York, Brooklyn borough, in the county of New York andState of New York, have invented certain new and useful Improvements inliocks'g'and I do hereby declare the following to be afull, clear, andexact as with a saw or file as it will freely turn when said tools areapplied, I

A further object of my invention among others is to provide. thoroughlyreliable and ellieient though very simple means whereby the bolt may bereadily lockedfrom the inside ofthe door as against the operation of theregular key of the look when applied from the outsideof the door.

' Other objects and advantages will be made clearly apparent in thefollowing specification and pointed out in the claims,

reference being bad to the accompanying drawings which are made a partof this application and in'which, V Figure 1 shows a central sectionalview of my invention taken on dotted line 1, 1

of Fig. 2. Fig. 2 shows a sectional view of the barrel of the lockingbolt as indicated on dotted lines 2, 2 of Fig. 1. Fig. 3 is a sectionalviewon dotted lines 3, 3 of Fig. 1. Figs. 4 and'5 are perspective viewsof certain cooperating parts of my lock control.

In order to conveniently refer to the various details of my inventionand cooperating accessories, numerals will be employed, the same numeralbeing appliedto a corresponding part throughout the views. Referring indetail to the drawings, 1

indicates a portion of the door contiguous to the lock of the usualorany preferred construction and said door 1s provided in the usual mannerwith a transverse bore 2 and also with a suitable bore or seat to receive the housing 3,

which is cylindrical in form and provided with a suitable bore adaptedto snugly receive the cylindrical form of bolt 4 andpermit the freereciprocation and rotation thereof as will be hereinafter set forth.

My improved form of cylindrical bolt consists of a body portion or boltproper 4 having the inner end or terminal z") of substantially the samediameter as said body portion, the intermediate section being cutaway toprovide the shaft 6 having at regular intervals thereon a plurality ofannular teeth 7 which serve as the teeth on a rack barand which aredesigned to coiiperate with the controlling gear 8, which latter isformed upon the shaft 9 extending outward through the plates 10 and 11secured in anv preferred way over the inner end'of the bore 2, theplate/11 having the cylindrical extension or hub section 12, the openouter end of which is closed by the flared inner end of the collar 13carried by the milled head or controlling knob 14:. The shaft 9 is alsoprovided exteriorly of the plate 11 with an integral or other form ofcollar 15, the latter having upon one side a marginal recess 16 to bebrought into registration with the lug or tooth 17 located on the innerside of the extension 12.. On the inner end of the elongated gear wheel8 I provide the dowel or flattened extension 18 which is designed toenter the slotted opening 19 provided for the control of the tumblerslocated within the barrel 20, which latter is provided the usual orpreferred form of housing 21 for the exterior end thereof as is commonin looks of this character, the said housing is provided with the usualform of escutcheon having a key hole whereby the key 22 may be readilyentered into engagement with a plurality of tum- 18 will find and enterthe slot 19 when the knot 14 is rotated. In order to lock the shaft 9and its gear 8 and thereby hold the bolt from being movedlongitudinally, I

also provide the recess 16 on the collar gear 8 being designed to permitthe longitudinal movement of the shaft 9 incident to the operation of mylock as will be hereinafter pointed out.

The operation of my invention may be stated as follows: It will beunderstood that when the key is entered in the lock the plurality oftumblers within the barrels 20 will all be properlyalined by the actionof said key and since the extension 18 is resting normally within theslotted opening 19 it follows that when the key is turned it will causethe rotation of all the tumblers and incidentally the gear 8 causing thelatter to travel. over and engage the teeth 7 and incidentallv extend orwithdraw the bolt as desired. The bolt is therefore positively moved bythe action of the key inasmuch as no dependence is placed upon thesprings or any equivalent means to bolt. In like manner the bolt may beread ily placed in an unlocked position by a reverse turning of the keyand the incident reverse rotation of the slotted member controlling thegear 8.

My improved lock may be so set from the inside of the door that the keybelonging to the lock will not operate the same, such result being verydesirable at times and this action of my look I am able to secure by a Islight pull upon the knob 14 which will cause the outward movement ofthe shaft 9 sufficiently to bring the disk or collar 15 .into

engagement with the lug 17 when by turn;

ing the controlling knob 14 to a proper point the said notch or recess16 will be brought, into registration with the tooth or mg 17 when theshaft 9 may be further withdrawn sufficiently to place the said disk orcollar 15 upon the outer side of said lug or tooth and by said meanswithhold the shaft 9 in its outwardly extended position until the shaft9 is again rotated sufficiently to permit the collar 15 to pass thetooth, through the mediation of the recess 16 and the compression spring23 as will be obvious. when the shaft 9 has thus been withdrawn it willbe clear that the dowell or flattened extension 18 is wholly withdrawn.from the recess 19 and it thereby follows that when the key is turned inthe lock there will be no connection whatever vbetween the tumblers thusthrow or return said' direction the key may be turned.

It is furthermore obvious that when the shaft 9 is withdrawn so that thedowel or extension 18 is no longerin engagement with the slot 19 thebolt may be readily thrown outward and withdrawn independently of thetumblers.

It will therefore, be obvious from the foregoing description that I haveprovided a reliably efficient form of lock having a. cylindrical form ofbolt which is at all times left free to rotate and will consequentlyfreely turn as against the action of a file or saw and will prevent thecutting of the bolt in such manner as is now common with that form ofbolt which is angular in cross section.

The notches 16 are recessed in the collar 15 for the purpose of lockingthe gear 8 in rigid position and away from the key controlling device.For-this purpose the knob 14 is grasped and drawn outward the collarBelieving that-the construction, advan tages and operation of myinvention in improved locks hasthus been made clearly apparent, furtherdescription is deemed unnecessary. 7

What I claim as new and'desire to secure by Letters Patent is 1. In alock of the character described, the combination of a cylindrical bolthaving a reduced section freely rotatable on its aXis. a suitablehousing therefor, a plurality of teeth preferably formed upon thereduced section of the bolt, a pinion cotiperating with said teeth andmeans to place said pinion in and out of communication with that part ofthe lock controlled with a key.

2. A look of the character described, comprising a cylindrical bolthaving a reduced section freely rotatable on its axis, a suitablemounting therefor, a plurality of annular teeth formed upon the reducedsection of the bolt, a gear device coiiperating with said teeth;"a shaftin control of said gear, a barrel provided with interchangeable lockingmembers having a controlling key, means to move and hold the shaft andsaid gear in an outward direction whereby said gear will be placed outof communication with the key controlling device.

3. The herein described lock, comprising a plurality of tumblers havingreduced portion a key in control thereof; a cylindrical bolt having withannular teeth preferably formed upon the reduced portion thereof andmounted to freely rotate, a controlled extension upon the end of saidgear to communicate with the key controlled tumblers whereby the gearwill be rotated incident to the rotation of the key controlled tumblersand means to connect and disconnect the gear with the key controlledmembers as de sired. V

4. The herein described lock, comprising key controlled devices; a. boltcylindrical in cross section and mounted to freely rotate having aplurality of annular teeth on a portion thereof; a gear cooperating withthe said annular teeth, said gear having an extension designed to engagethe key cntrolled device and means whereby said gear may be withdrawn,from connection with said key controlled devices from the inner side ofthe door. I

5. A lock comprising, a plurality of key operative tumblers, a geardevice independently connected to said key operative devices, said gearhaving a collar therearound, a recess in said collar and a notch in saidcollar, said recess to allow said collar to pass a lug in the housingthereto, and said notch to lock said gear in open position, a housingfor said gear, a cyllndrical locking bolt ing with said gear device,said locking bolt being mounted to freelyrotate and a housing to saidlocking bolt.

(S. A look comprising, a housing having a transverse channel therein, alug integral to said housing, a cylindrical bolt mounted in saidtransverse channel to freely rotate therein, and having a reducedportion with annular teeth therearound, a gear device mounted in saidhousing and meshingwith said teeth, said gear device having a shouldertherearound, with a recess and a notch therein, said recess to allowsaid shoulder to pass said lug, and said notch to allow of the geardevice to be lockedin disconnected position, a plurality of keycontrolling devices mounted in said housing and adapted to independentlyconnect with said gear device.

7. A lug comprising, a freely rotatable locking bolt, a housingtherefor, a reciprocatory operating gear mounted at right angles to saidlocking bolt and meshing therewith to operate the same, a collar uponsaid gear having a recess and. a notch therein, a housing for said gearhaving a lug projecting therethrough, said lug adapted to allow saidcollar to pass the lug by means of said recess and to lock thereagainstby means of said notch, and a plurality of key controlled devicesindependently connected to said gear device, said locking bolt beingindependently operated by either said gear devices or said keycontrolled devices.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE ASTON.

WVitnesses: 7

Lotus Ix. TILT, /BURNINE MILLS.

